(2R,3R,4S,5R,6S)-6-((2S,3S,4R,5R,6R)-6-(benzyloxy)-4-(tert-butyldimethylsilyloxy)-5-iodo-2,4-dimethyltetrahydro-2H-pyran-3-yloxy)-4-methoxy-2-methyl-5-(methylthiocarbonothioyloxy)tetrahydro-2H-pyran-3-yl benzoate 在
偶氮二异丁腈 、 palladium 10% on activated carbon 、
氢气 、
三正丁基氢锡 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 ethanaminium,N-(difluoro-λ
4-sulfanylidene)-N-ethyl-,tetrafluoroborate 作用下,
以
二氯甲烷 、
甲苯 、
苯 为溶剂,
反应 15.5h,
生成
(2R,3R,4R,6S)-6-(((2S,3S,4S,6S)-4-((tert-butyldimethylsilyl)oxy)-6-fluoro-2,4-dimethyltetrahydro-2H-pyran-3-yl)oxy)-4-methoxy-2-methyltetrahydro-2H-pyran-3-yl benzoate 、 (2R,3R,4R,6R)-6-(((2S,3S,4S,6S)-4-((tert-butyldimethylsilyl)oxy)-6-fluoro-2,4-dimethyltetrahydro-2H-pyran-3-yl)oxy)-4-methoxy-2-methyltetrahydro-2H-pyran-3-yl benzoate